/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package gandalf.servlet;

import gandalf.controller.CartJpaController;
import gandalf.controller.StrankaJpaController;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author jlajlar
 */
public class LoginServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {


            // pridobimo kosarico, ce obstaja
            gandalf.model.Cart vozicek = null;
            CartJpaController cartDao = new CartJpaController();

            Long idKosarica = (Long) request.getSession().getAttribute("kosarica_id");

            if(idKosarica != null) {
                vozicek = cartDao.findCart(idKosarica);
            }

            // pridobimo stranko
            StrankaJpaController strankaDao = new StrankaJpaController();
            String email = request.getParameter("email");
            String password = request.getParameter("password");

            Long idStranke = strankaDao.avtenticiraj(email, password);

            if (idStranke != null && idStranke!= 2) {
                // idstranke damo v session
                request.getSession().setAttribute("stranka_id", idStranke);
                request.getSession().setAttribute("notice", "Uspešno ste se prijavili.");
                response.sendRedirect("index.jsp");

                // ce vozicek obstaja mu dodamo prijavljeno stranko in shranimo
                if (vozicek != null) {
                    vozicek.setStranka(strankaDao.findStranka(idStranke));
                    cartDao.edit(vozicek);
                }

            } 
            else if(idStranke == 2){
            request.getSession().setAttribute("stranka_id", idStranke);
                request.getSession().setAttribute("notice", "Uspešno ste se prijavili.");
                response.sendRedirect("vmesnik.jsp");}
            else
            {
                request.getSession().setAttribute("notice", "E - mail naslov ali geslo sta napačna.");
                response.sendRedirect("login.jsp");
            }

        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
